Display screen with a graphical user interface



FIG. 1 is an image of a first embodiment of a display screen with a graphical user interface.

FIG. 2 is an image of a second embodiment of a display screen with a graphical user interface.

FIG. 3 is an image of a third embodiment of a display screen with a graphical user interface; and,

FIG. 4 is an image of a fourth embodiment of a display screen with a graphical user interface.

The outer broken line perimeter showing the display screen and the broken lines within showing features of the graphical user interface are provided for the purpose of illustrating portions of the article and forms no part of the claimed design. 

CLAIM The ornamental design for a display screen with a graphical user interface, as shown and described. 